Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Undistributed earnings of foreign subsidiaries	$ 2,500.0	$ 2,500.0
Net increase in valuation allowance		81.3
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Lower Bound	15.0	15.0
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Upper Bound	25.0	25.0
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	168.3	168.3
U.S. tax cost on foreign earnings		156.8	24.7	24.3
Operating Loss Carryforwards, Expiration Dates		2013 and 2032
Minimum tax credit carryforwards	35.9	35.9
Deferred Tax Assets, Tax Credit Carryforwards, General Business	11.6	11.6
Deferred Tax Assets, Tax Credit Carryforwards, Foreign	356.0	356.0	282.1
Capital loss carryforwards, expiration dates		2020 and 2031
Total gross unrecognized tax benefits	36.0	36.0	36.0	84.3	113.4
Unrecognized tax benefits that would impact effective tax rate	9.0	9.0
Accrued interest and penalties	6.2	6.2	12.9
Expense for interest and penalties		1.1	3.8	4.5
Additional provision for income taxes for no longer asserting indefinite reinvestment	168.3
Deferred Tax Liabilities, Undistributed Foreign Earnings	(224.8)	(224.8)	(46.8)
VENEZUELA
Undistributed earnings of foreign subsidiaries	158.7	158.7
Foreign [Member]
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration	2,015.4	2,015.4
Foreign tax loss carryforwards	2,183.7	2,183.7
Deferred Tax Assets, Tax Credit Carryforwards, Foreign	$ 356.0	$ 356.0